276 



BASKERVILLE— RATE OF EVAPORATION. 



[April 23, 



The significance of this conduct cannot fail to be of great im- 

 portance, for by this means the proper content of ether may be main- 



^mm 



tained in the blood to produce any desired physiological eilfect that 

 has a quantitative relation thereto, for example, the third or surgical 

 stage of anesthesia.^^ 



The last mentioned has been demonstrated clinically by Wallace, 

 who found respiration and blood pressure fully maintained, and 

 Gwathmey and others with records to date of about 1,000 human 

 cases. So far, not a case of post-ether pneumonia has been encoun- 



15 In this connection it may be stated that about 30 mils of a 75 per 

 cent, mixture to 20 lbs. of body weight is administered as an enema. 



